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Finding the Fourth Proportional to 19,747.98, 29,621.97 and 7,907.13

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Solution

The fourth proportional to 19,747.98, 29,621.97 and 7,907.13 is: 11,860.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,747.98 : 29,621.97 = 7,907.13 : x
  2. Step 2: Convert to fraction form
    19,747.98/29,621.97 = 7,907.13/x
  3. Step 3: Cross multiply
    19,747.98x = 29,621.97 × 7,907.13
  4. Step 4: Simplify right side
    19,747.98x = 234,224,767.65
  5. Step 5: Solve for x
    x = 234,224,767.65/19,747.98
  6. Step 6: Final answer
    x = 11,860.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.